论文标题
具有低横向动量的包容性喷气横截面对PP碰撞中Gluon Parton分布的测定
Impact of inclusive jet cross sections with low transverse momenta on the determination of gluon parton distributions in pp collisions
论文作者
论文摘要
强子山脉的喷射产生对质子的Parton分布函数（PDF）的限制，尤其是在Gluon分布上。在本文中，在$ \ sqrt s = 8 $ tev的质量中心能量的CMS PDF上对具有低动量$ P \ Mathrm {_t _t} $的喷气式的质量中心能量的影响，并在前进方向上生产，以敏捷的量子量子量化量子量表（Qcccd）进行了研究。将QCD全局分析的结果与理论预测进行了比较。评估了低$ p \ mathrm {_t} $ JET测量对确定Gluon分布的影响。讨论的测量值包括大于Bjorken $ x> 0.1 $的Gluon分布的不确定性的进一步限制，其中低$ P_T $数据具有最大的影响。
Jet production at hadron colliders provides constraints on the parton distribution functions (PDFs) of the proton, in particular on the gluon distribution. In the present paper, the impact on PDF of CMS inclusive differential jet cross sections at center-of-mass energy of $\sqrt s = 8$ TeV for jets with low momentum $p\mathrm{_T}$ and produced in the forward direction is investigated at next-to leading order in perturbative quantum chromodynamics (QCD). The results of the QCD global analysis are compared with theoretical predictions. The impact of low-$p\mathrm{_T}$ jet measurements on the determination of the gluon distribution is assessed. The inclusion of the discussed measurements adds further constraints on the uncertainty of the gluon distribution at large Bjorken $x > 0.1$, where the low-$p_T$ data have the largest impact.
